263 research outputs found
Autotoxic effects of aqueous extracts of ginger on growth of ginger seedings and on antioxidant enzymes, membrane permeability and lipid peroxidation in leaves
No full textWe studied the effects of aqueous extracts of ginger plants on the growth membrane permeability and antioxidant enzymes in leaves of ginger seedlings. Ginger seedlings were sprayed with aqueous extracts of ginger rhizomes, stems and leaves at 10, 20, 40 or 80 g L-1 concentrations. Higher concentrations of extracts significantly inhibited the shoot height, underground (i.e. rhizome yield), total biomass of ginger seedlings and decreased the total chlorophyll content but increased the lipid peroxidation and membrane permeability. The increased concentrations of stem and leaf extracts deceased the activities of major antioxidant enzymes (superoxide dismutase, peroxidase, catalase and ascorbate peroxidase) in leaves of ginger seedlings. The rhizome extracts were less stimulatory at lower concentrations but became inhibitory at higher concentrations. The phytotoxicity of extract at same concentrations followed the order of decreasing inhibition: stem > leaf > rhizome. These results showed that ginger has autotoxic potential, hence, its residues (stems, leaves) should be removed from the fields to reduce the autotoxic effects on next ginger crop seedlings
The Legacy of Verna E. Pratt.
No full textWhen Ginger Hudson purchased her first Field Guide to Alaskan Wildflowers in 1999, she had no idea she was destined meet the author, Verna Pratt-twelve years later. Today, Ginger is the newsletter editor for the Master Gardeners in Anchorage and secretary of the Native Plant Society. She is enrolled in the UAA MFA Creative Writing and Literary Arts Program to complete her forthcoming publication, The Life and Legacy of Verna Pratt, Alaska's Wildflower Wizard
Gas chromatography - mass spectrometry (GC-MS) based metabolic fingerprinting of three Malaysia ginger (zingiber officinale rosc.) cultivars
No full textA comprehensive metabolic fingerprinting of three micro propagated ginger explants, Bukit Tinggi,
Tanjung Sepat and Sabah cultivars, was carried out using Gas chromatography coupled with mass
spectrometry (GC-MS). The ginger leave tissues were fractionated in a polar (MeOH) and non polar
(CHCl3) solvents, subsequently methoximated and silylated prior to GC-MS analysis. By applying this
technique, over 300 metabolites (polar and non-polar) in total were detected in each ginger cultivar.
However, only about 25% of these compounds can be definitely characterised by using the Wiley7n.1 and
the NIST Mass spectra libraries for the best hit of the molecular ion peaks and the fragmentation patterns.
Fatty acids and sugars (mono− and disaccharides) as the main constituents of the ginger leaf tissues
besides a small amount of essential amino acids as well as some organic acids. In addition, a distinct GCMS metabolic fingerprinting in each of the ginger cultivar can be used as “unequivocal pattern
recognition” among the ginger phenotype derived from Bukit Tinggi, Tanjung Sepat and Sabah
Sounds Local, 1998 January 10
No full textInterview with author William McCranor Henderson on his book, I, Elvis: Confessions of Counterfeit King, about Elvis Presley impersonators; Ginger Miles reports on the artists, writers, musicians, and more at the Chelsea Hotel in New York City; Titanic (film) review by WHQR's film commentator, Steve Taylor; Overview of upcoming events on the cultural calendar
Final report of Ginger McCall, Oregon Public Records Advocate
No full textTitle from PDF cover (viewed on October 11, 2019).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Isolation and characterization of natural products from ginger and Allium ursinum
No full textPhenolic compounds from natural sources are receiving increasing attention recent years since they were reported to have a remarkable spectrum of biological activities including antioxidant, anti-inflammatory and anti-carcinogenic activities. They may have many health benefits and can be considered possible chemo-preventive agents against cancer.
In this research, we attempted to isolate and characterize phenolic compounds from two food sources: ginger and Allium ursinum. Solvent extraction and a series of column chromatography methods were used for isolation of compounds, while structures were elucidated by integration of data from MS, 1H-NMR, 13C-NMR, HMBC and HMQC. Antioxidant activities were evaluated by DPPH method and anti-inflammatory activities were assessed by nitric oxide production model.
Ginger is one of most widely used spices. It has a long history of medicinal use dating back 2500 years. Although there have been many reports concerning chemical constituents and some biological activities of ginger, most works used ginger extracts or focused on gingerols to study the biological activities of ginger. We suggest that the bioactivities of shogaols are also very important since shogaols are more stable than gingerols and a considerable amount of gingerols will be converted to shogaols in ginger products. In present work, eight phenolic compounds were isolated and identified from ginger extract. They included 6-gingerol, 8-gingerol, 10-gingerol, 6-shogaol, 8-shogaols, 10-shogaol, 6-paradol and 1-dehydro-6-gingerdione. DPPH study showed that 6-shogaol had a comparable antioxidant activity compared with 6-gingerol, the 50% DPPH scavenge concentrations of both compounds were 21?M. All of the eight isolated compounds had effects on inhibiting LPS-induced NO production, and 6-shogaol showed more inhibitory effect than 6-gingerol with reducing nitrite production by 85 % compared with 35 % by 6-gingerol at 5 ?M.
Flavonoids are a group of phenolic compounds that occur naturally in food of plant origin. Compelling data indicated that flavonoids had important effects on cancer chemoprevention and chemotherapy. Among 10 compounds we isolated from Allium ursinum, a widely used spice, eight of them were flavonoids. Three of them, kaempferol 3-O-?-L-rhamnopyranosyl (1?2)-[3-O-acetyl]-?-D-glucopyranoside, kaempferol 3-O-?-L-rhamnopyronosyl (1?2)-[6-O-acetyl]-?-D-glucopyranoside and 6'-O- acetyl kaempferol-3-O-L-rhamnopyranosyl(1?2)-?-D-glucopyranoside- 7-O-[2-O-(trans-p-coumaroyl)]-?-D-glucopyranoside were new natural products.Ph.D.Includes bibliographical references (p. 73-80)
Responding to Their Voice: The Needs of Postsecondary Students With Intellectual or Developmental Disability
No full textAbstract
Date Presented 3/30/2017
Students with intellectual or developmental disabilities are entering postsecondary programs. Persisting adaptive behavior needs affect performance and participation. This research served to better understand student needs and potential roles of occupational therapy in postsecondary settings.
Primary Author and Speaker: Lucretia Berg
Contributing Authors: Tracy Jirikowic, Ginger MacDonald, Katie Haerling</jats:p
Evaluation Test of Herbal Tea Preparations of Ginger, Cinnamon Bark and Starfruit
No full textBackground: Herbal tea is a product of brewing various types of plants starting from leaves, stems, flowers and fruit. Tea is a drink that is widely circulated loved and consumed by people all over the world and most of the people use it Tea is a refreshing and healthy drink.
Objective: This study aims to evaluate ginger herbal tea preparations,starfruit and cinnamon bark.
Method: Samples of ginger, cinnamon bark and starfruit were taken from Padang Bulan market in Medan, North Sumatra. Organoleptic Tests, pH Tests, and Hedonic/Likeability Tests were carried out.
Results: The results showed that the herbal tea samples of ginger, starfruit, and cinnamon bark with 3 formulas, namely F I, F II, and F III in these three formulas. The similarities in the organoleptic test are the distinctive ginger aroma, brownish color, and distinctive ginger taste and slightly thick texture. pH test results on F I with 3 repetitions with an average pH of 3.66. F II was carried out with 3 repetitions, namely with an the average pH result was 3.40 and F III was tested 3 times with an average pH value 3.20. The results of the hedonic test show that in F I the writer chose to really dislike it categories (8.7%), dislike (13%) and neutral (73.9%). In F II the author chooses neutral
(30.4%) like (60.9%) and really like (8.7%) and the F III data shows that the author chooses neutral (4.3%) and very like (95.0%) categories. Result of the hedonic test in the table shows that the panelists like F III in the very like category with a value of (95.7%), FI in the neutral category (73.9%) and F II in the like category (60.9%)
Conclusion: The tea preparations made meet the evaluation requirements well preparation and is the most popular formula for panelists at F III.48 PagesKertas Karya Diplom
High-speed predictions of post-burn contraction using a neural network trained on 2D-finite element simulations
No full textSevere burn injuries often lead to skin contraction, leading to stresses in and around the damaged skin region. If this contraction leads to impaired joint mobility, one speaks of contracture. To optimize treatment, a mathematical model, that is based on finite element methods, is developed. Since the finite element-based simulation of skin contraction can be expensive from a computational point of view, we use machine learning to replace these simulations such that we have a cheap alternative. The current study deals with a feed-forward neural network that we trained with 2D finite element simulations based on morphoelasticity. We focus on the evolution of the scar shape, wound area, and total strain energy, a measure of discomfort, over time. The results show average goodness of fit (R2) of 0.9979 and a tremendous speedup of 1815000X. Further, we illustrate the applicability of the neural network in an online medical app that takes the patient's age into account.Numerical Analysi
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High resolution retinal imaging to evaluate laser and light safety in the retina for near and long term health effects
No full texttextThe purpose of this research was to investigate detect and monitor laser-tissue interactions at threshold and potentially sub-threshold levels of injury. High resolution imaging modalities can provide a deeper understanding of candidate biomarkers disease and injury at the molecular, cellular, and tissue-levels which can be used to identify and diagnose early stages disease and damage. In addition, multi-scale and multi-modal imaging have also been used to identify inherent biomarkers of retinal disease and injury. Monitoring tissue changes can be mapped back to biological changes at the cellular and sub-cellular level. Diseases often alter tissue on the ultra-structural level yet retinal clinical diagnosis often monitor changes in tissue at the organ level. If injury and disease is detected and diagnosed during an “early” stage of development, treatments and drug interventions may prevent further spread of the pathology. Non-invasive imaging is expected to be a valuable tool for in vivo medical research as well as for the diagnosis and management of disease. In addition to developing new imaging tools and techniques to image the retina, the identification of inherent biomarkers of disease and health using diagnostic methods are almost equally as important.
Using the inherent optical properties of retinal tissue, we can non- invasively quantify differences in the absorption and reflection of light to gauge the risk for visual disability or worse yet irreversible vision loss as a result of retinal disease and chronic light exposure. The research presented with in this dissertation is three separate studies aimed at identifying light injury and potential biomarkers indicating the risk of light mediated development of disease.Biomedical EngineeringCivil, Architectural, and Environmental Engineerin
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